dctl

Set NAK automatically on babble (NakOnBble). The core sets NAK automatically for the endpoint on which babble is received.

Do NOT program IgnrFrmNum bit to 1'b1 when the core is operating in threshold mode. When Scatter/Gather DMA mode is enabled this feature is not applicable to High Speed, High bandwidth transfers. When this bit is enabled, there must be only one packet per descriptor. In Scatter/Gather DMA mode, if this bit is enabled, the packets are not flushed when a ISOC IN token is received for an elapsed frame. When Scatter/Gather DMA mode is disabled, this field is used by the application to enable periodic transfer interrupt. The application can program periodic endpoint transfers for multiple (micro)frames. 0: periodic transfer interrupt feature is disabled, application needs to program transfers for periodic endpoints every (micro)frame 1: periodic transfer interrupt feature is enabled, application can program transfers for multiple (micro)frames for periodic endpoints. In non Scatter/Gather DMA mode the application will receive transfer complete interrupt after transfers for multiple (micro)frames are completed.

GMC must be programmed only once after initialization.Applicable only for Scatter/Gather DMA mode. This indicates the number of packets to be serviced for that end point before moving to the next end point. It is only for non-periodic end points. When Scatter/Gather DMA mode is disabled, this field isreserved. and reads 0.

The application uses this bit to indicate that registerprogramming is completed after a wake-up from Power Downmode.

A write to this field clears the Global OUT NAK.

A write to this field sets the Global OUT NAK.The application uses this bit to send a NAK handshake on all OUT endpoints. The application must Set the this bit only after making sure that the Global OUT NAK Effective bit in the Core Interrupt Register GINTSTS.GOUTNakEff) is cleared.

A write to this field clears the Global Non-periodic IN NAK.

A write to this field sets the Global Non-periodic IN NAK. The application uses this bit to send a NAK handshake on all nonperiodic IN endpoints. The core can also Set this bit when a timeout condition is detected on a non-periodic endpoint in shared FIFO operation. The application must Set this bit only after making sure that the Global IN NAK Effective bit in the Core Interrupt Register (GINTSTS.GINNakEff) is cleared

Others: Reserved.

Reports NAK status. All isochronous OUT packets aredropped.

Defines IN NAK conditions.

The application uses this bit to signal the otg core to do a soft disconnect. As long as this bit is Set, the host does not see that the device is connected, and the device does not receive signals on the USB. The core stays in the disconnected state until the application clears this bit. There is a minimum duration for which the core must keep this bit set. When this bit is cleared after a soft disconnect, the core drives the phy_opmode_o signal on the ULPI, which generates a device connect event to the USB host. When the device is reconnected, the USB host restarts device enumeration.;

When the application sets this bit, the core initiates remote signaling to wake up the USB host. The application must Set this bit to instruct the core to exit the Suspend state. As specified in the USB 2.0 specification, the application must clear this bit 115 ms after setting it. Remote Wakeup Signaling (RmtWkUpSig) When LPM is enabled, In L1 state the behavior of this bit is as follows: When the application sets this bit, the core initiates L1 remote signaling to wake up the USB host. The application must set this bit to instruct the core to exit the Sleep state. As specified in the LPM specification, the hardware will automatically clear this bit after a time of 50us (TL1DevDrvResume) after set by application. Application should not set this bit when GLPMCFG bRemoteWake from the previous LPM transaction was zero.